Principles of Operation

PRINCIPLES OF OPERATION

Power Locks
The smart junction box (SJB) monitors the door lock control switches. When the SJB receives an unlock/lock command from either door lock control switch, the SJB energizes a relay to supply the correct power and grounds for the door lock actuators.

Liftgate Release
The liftgate release switch operates the liftgate latch electronically. When the switch is pressed, the SJB processes the input and releases the liftgate latch.

The doors must be unlocked electronically in order for the SJB to release the liftgate latch. When this condition is met and the SJB receives the input from the liftgate release switch, the SJB provides power to the latch release motor.

Keyless Entry Keypad
The SJB monitors the keyless entry keypad input. When the correct codes are entered into the SJB, the SJB carries out functions associated with the code entered. Based on input from the keypad, the SJB:
- locks all doors.
- unlocks the driver door.
- unlocks all doors.
- enters programming mode.
- enables/disables the autolock feature.
- enables/disables the auto-unlock feature.

Remote Keyless Entry (RKE)
The SJB receives input from programmed integrated keyhead transmitters (IKTs). Based on input from the IKT, the SJB:
- locks all doors.
- unlocks the driver door.
- unlocks all doors.
- activates/deactivates the panic alarm.
- arms/disarms the perimeter alarm (if equipped).
- if equipped, issues a command over the communication network to the power liftgate module to open the power liftgate.
- if equipped, activates the memory positions.
- turns the interior lamps on (when unlocking) and off (when locking), provided the defeat switch on the dimmer switch is not active.
- sounds the horn once when LOCK is pressed twice within 3 seconds, and the doors are closed.
- sounds the horn twice when LOCK is pressed twice within 3 seconds, and any door is open.